.nav {
    display: flex;

}

.nav>img {
    flex: 3;
    height: 80%;
}

#maskbox {
    flex: 2;
    height: 80%;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

#maskbox>a img {
    margin-left: 230px;
    margin-bottom: 30px;
    margin-top: 100px;
}

#maskbox .denglu a {
    height: 40px;
}

#maskbox .denglu a.on {
    color: #00bdff;
    border-bottom: 2px solid;
}

#maskbox .denglu {
    display: flex;
    margin: 0 auto;
    margin-bottom: 20px;
    justify-content: center;

}

#maskbox .denglu p {
    margin: 0 20px;
}

#maskbox #tab {
    width: 370px;
    height: 400px;
    display: flex;
    flex-direction: column;
    margin: 0 auto;
    opacity: 1;
    z-index: 99;
}

#maskbox #tab .user,
.pass {
    width: 300px;
    height: 35px;
    border-bottom: 1px solid #e7e7e7;
    margin: 0 auto;
    display: flex;
    margin-bottom: 20px;
}

#maskbox #tab .user div {
    width: 25px;
    height: 34px;
    background: url(../img/loginIcon.png) no-repeat;
    background-position: -55px 0px;
}

#maskbox #tab .pass div {
    width: 25px;
    height: 34px;
    background: url(../img/loginIcon.png) no-repeat;
    background-position: -25px 0px;
}

#maskbox #tab .user input {
    border: none;
    background-color: #fff;
}

#maskbox #tab .pass input {
    border: none;
    background-color: #fff;
}

#maskbox #tab .forget {
    text-align: right;
    color: #00bdff;
    margin: 20px 0;
    margin-right: 35px;

}

#maskbox #tab button {
    width: 300px;
    height: 45px;
    background-color: #03c5ff;
    border: none;
    margin: 0 auto;
    color: #fff;
    font-size: 16px;
    margin-bottom: 10px;
}

#maskbox #tab p {
    display: flex;
    margin-left: 100px;
    font-size: 12px;
}

#maskbox #tab p a {
    display: flex;
    width: 100px;
    justify-content: space-around;
    color: #00bdff;
}

#maskbox #tab p a span {
    display: block;
    width: 15px;
    height: 15px;
    background: url(../img/loginIcon.png) no-repeat -56px -37px;
    margin-top: -2px;
}


#tabt {
    width: 370px;
    height: 380px;
    display: flex;
    flex-direction: column;
    margin: 0 auto;
    opacity: 0;
    position: absolute;
    left: 118px;
    top: 200px;
    z-index: -5;

}

#tabt .scan {
    height: 288px;
    width: 288px;
    border: 1px solid #eee;
    background-color: #fcfcfc;
    display: flex;
    flex-direction: column;
    justify-content: center;
    margin: 0 auto;
    margin-bottom: 20px;
}

#tabt .scan img {
    display: block;
    margin: 40px auto 20px;
}

#tabt .scan .one {
    text-align: center;
    font-size: 12px;
    margin-bottom: 20px;
}

#tabt .scan .two {
    text-align: center;
    font-size: 12px;
    margin-bottom: 35px;
}

#tabt .ten {
    display: flex;
    margin-left: 100px;
    font-size: 12px;
}

#tabt .ten a {
    display: flex;
    width: 100px;
    justify-content: space-around;
    color: #00bdff;
}

#tabt .ten a span {
    display: block;
    width: 15px;
    height: 15px;
    background: url(../img/loginIcon.png) no-repeat -56px -37px;
    margin-top: -2px;
}